1.) What are natural resources?
2.)Give three examples of natural and man-made material?
3.)What are the two kinds of natural resources? Explain giving examples?
4What are fossil fuels? Give three examples?
5.)Write two uses of coke?
6.)Name four substances which are manufactured using products obtained from coal tar?
Plz give answers clearly and number wise
Answers
Answer:
plant,air,water, environment and our body
Answer:
1 ) Natural resources are resources that exist without any actions of humankind.
2) Natural : tree, sun, cloud etc
man-made :book, house, chair etc.
3) there are two sorts of natural resources: renewable resources and non-renewable resources. A renewable resource is one which can be used again and again. For example, soil, sunlight and water are renewable resources
.
4)Fossil fuels are made from decomposing plants and animal example coal and natural gas
.
5)Uses of Coke:
1)The most common use of coke is as a fuel for stoves, furnaces and blacksmithing. It is sometimes preferred over coal because burning coke produces very little smoke.
2) It is also used to produce iron in a blast furnace.
Coke is used to manufacture steel and many other materials.
6)Coal tars are complex combination of polycyclic aromatic hydrocarbons (PAHs), phenols, heterocyclic oxygen sulpur and nitrogen compounds. Coal tar is widely used to manufacture paints, perfumes, synthetic dyes, photographic material, drugs and explosives.